Improvement in corn-shellers



sms c;ScHOF|E'LD1 Improvement in Corn Shellrs.

Pz-xtented June 6,181i.

No. H5,646.

SILAS C. SCHOFIELD, OFOHIGAGO, ILLNOIS.

iwnenovElvira-i lN'coRN-SHELLERS.

Specification forming part of Letters Patent No. 115,646, dated June 6, 1871.

To whom it may concern:

Be it known that I, SILAs C. Scnorrann, of Chicago, in the county of Cook and State of Illinois, have invented certain Improvements in Gorn-Shellers 5 and I do hereby declare that the following is a full, clear, and enactv description thereof, reference being had to the accompanying drawing, which, together with 4the letters and figures marked thereon, forms part of this speciiication, and in which- Figure 1 is a side elevation of a corn-Sheller, according to my invention. Fig. 2 is an end view of the same, the rear end being shown. Fig. 3 is a horizontal section of Fig. 1 taken on the line Fig. et is a cross-sectional .view of the pressureroller. Fig. 5 is a longitudinal section of the bottom piece.

Like lettersof reference made use of in the several iigures indicate like parts.

To enable those skilled in the art to make and use my invention, I will' proceed to describe the same, making reference, in so doing, to the aforesaid drawin 0.

General Description.

A is the outside casing of the sheller, supported by the legs a. B is the picker or shellin g-cylinder, furnished with a number of radiating teeth, Z2, and provided also with a series of spiral ilanges, C, which project from the surface of said cylinder to about the same height of the teeth, and serve to prevent the ears of corn from becoming jammed between said teeth in the operation of shelling, and, at the same time, to assist in shelling, and, by their spiral inclination, to help propel the cobs and ears longitudinally toward the discharge.

This cylinder is carried upon the same shaft as the ily-wheel D, and revolves with a considerable rapidity. Eis a luted pressure-cylinder, placed beside the cylinder B, and revolved in the same direction and with a much less velocity. A. section of this cylinder is shown at Fig. 4. This pressure-cylinder is carried in the sliding bearings e c, which are furnished with springs f, so arranged as to press 4 the said cylinder toward the shelling-cylinder.

F is a fiat horizontalbar, made with a series of diagonal ridges, G, upon its upper surface. This bar is placed between the two revolving cylinders, and low enough down to form a bottom or door to support the ears of corn as they pass; and the diagonal ridges act upon the revolving ears of corn in the manner of a screw and force them along toward the cob-discharge H, in the direction of the arrow at Fig.3.

The gearing to operate this mechanism, as shown in the drawing, is as follows The handcrank K is attached to an internal cog-Wheel, L, carried upon the brace l. This cog-wheel meshes into a smaller cog-wheel, M, carried upon the shaft of the ily-wheel D. By this arrangement the velocity of the fly-wheel is increased over that of said hand-crank. A cogwheel, N, is also carried upon the fly-wheel shaft, and meshes into an intermediate cogwheel, O, carried upon the casing ofthe sheller, which, in turn, meshes into the cog-wheel P carried upon the shaft of the revolving pressure-cylinder F.. By this arrangement the cylinder B is caused to revolve rapidly and the cylinder E to revolve with a less speed in the same direction with said cylinder B.

The operation of my machine is as follows: Corn upon the cob to be shelled is placed into the machine by an opening, R, at the top, and falls immediately between the revolving cylinders, while the horizontal bar F prevents the ears from fallingtoo low. The uted pressurecylinder E holds the ears up against the shelling-cylinder B, at the same time revolving the ear so as to present every side to the sheller. It will be noticed that the pressure-cylinder is slightly conical in form, being largest at the end nearest the discharge H. This form is necessary on account of the the varying size of the ear as the corn is removed from it. The ear, as it is revolved, is also pressed down by the action of the shelling-cylinder upon the diagonally-ribbed bar F, and the ribs or ridges G act upon the ear as a screw to force it along until the denuded cob is iinally discharged at the opening H. The shelled grani, in the meantime, falls each side ofthe bar F and between the cylinders, and is discharged at the opening Q.

Claims.

Having thus fully described the construction and operation of myinvention, I will prooecd to specify With particularity what I claimv volving pressure-roller E, the revolving shellf as new, and desire to secure by Letters Pating-cylinder B, and the diagonally-ribbed bar ent: F, all constructed and arranged substantially 1. The combination of the yielding and reas shown, and for the purposes described. volving roller.` E, and the revolving shelling- SAILAS C. SGHOFIELD.

cylinder B, when constructed and arranged substantially as shown, and for the purposes Witnesses:

set forth. J W. MUNDAY, 2. The combination of the yielding and re- H. F. BRUNs. 

